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[mesa.git] / src / mesa / state_tracker / st_extensions.c
1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * Copyright (c) 2008 VMware, Inc.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
29 #include "compiler/nir/nir.h"
30
31 #include "main/imports.h"
32 #include "main/context.h"
33 #include "main/macros.h"
34 #include "main/spirv_extensions.h"
35 #include "main/version.h"
36
37 #include "pipe/p_context.h"
38 #include "pipe/p_defines.h"
39 #include "pipe/p_screen.h"
40 #include "tgsi/tgsi_from_mesa.h"
41 #include "util/u_math.h"
42
43 #include "st_context.h"
44 #include "st_debug.h"
45 #include "st_extensions.h"
46 #include "st_format.h"
47
48
49 /*
50 * Note: we use these function rather than the MIN2, MAX2, CLAMP macros to
51 * avoid evaluating arguments (which are often function calls) more than once.
52 */
53
54 static unsigned _min(unsigned a, unsigned b)
55 {
56 return (a < b) ? a : b;
57 }
58
59 static float _maxf(float a, float b)
60 {
61 return (a > b) ? a : b;
62 }
63
64 static int _clamp(int a, int min, int max)
65 {
66 if (a < min)
67 return min;
68 else if (a > max)
69 return max;
70 else
71 return a;
72 }
73
74
75 /**
76 * Query driver to get implementation limits.
77 * Note that we have to limit/clamp against Mesa's internal limits too.
78 */
79 void st_init_limits(struct pipe_screen *screen,
80 struct gl_constants *c, struct gl_extensions *extensions)
81 {
82 int supported_irs;
83 unsigned sh;
84 bool can_ubo = true;
85 int temp;
86
87 c->MaxTextureSize = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_SIZE);
88 c->MaxTextureSize = MIN2(c->MaxTextureSize, 1 << (MAX_TEXTURE_LEVELS - 1));
89
90 c->Max3DTextureLevels
91 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
92 MAX_3D_TEXTURE_LEVELS);
93
94 c->MaxCubeTextureLevels
95 = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
96 MAX_CUBE_TEXTURE_LEVELS);
97
98 c->MaxTextureRectSize = _min(c->MaxTextureSize, MAX_TEXTURE_RECT_SIZE);
99
100 c->MaxArrayTextureLayers
101 = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
102
103 /* Define max viewport size and max renderbuffer size in terms of
104 * max texture size (note: max tex RECT size = max tex 2D size).
105 * If this isn't true for some hardware we'll need new PIPE_CAP_ queries.
106 */
107 c->MaxViewportWidth =
108 c->MaxViewportHeight =
109 c->MaxRenderbufferSize = c->MaxTextureRectSize;
110
111 c->SubPixelBits =
112 screen->get_param(screen, PIPE_CAP_RASTERIZER_SUBPIXEL_BITS);
113 c->ViewportSubpixelBits =
114 screen->get_param(screen, PIPE_CAP_VIEWPORT_SUBPIXEL_BITS);
115
116 c->MaxDrawBuffers = c->MaxColorAttachments =
117 _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
118 1, MAX_DRAW_BUFFERS);
119
120 c->MaxDualSourceDrawBuffers =
121 _clamp(screen->get_param(screen,
122 PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS),
123 0, MAX_DRAW_BUFFERS);
124
125 c->MaxLineWidth =
126 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH));
127 c->MaxLineWidthAA =
128 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_LINE_WIDTH_AA));
129
130 c->MaxPointSize =
131 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH));
132 c->MaxPointSizeAA =
133 _maxf(1.0f, screen->get_paramf(screen, PIPE_CAPF_MAX_POINT_WIDTH_AA));
134
135 c->MinPointSize = 1.0f;
136 c->MinPointSizeAA = 1.0f;
137
138 c->MaxTextureMaxAnisotropy =
139 _maxf(2.0f,
140 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY));
141
142 c->MaxTextureLodBias =
143 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_LOD_BIAS);
144
145 c->QuadsFollowProvokingVertexConvention =
146 screen->get_param(screen,
147 PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION);
148
149 c->MaxUniformBlockSize =
150 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
151 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE);
152 /* GL45-CTS.enhanced_layouts.ssb_member_invalid_offset_alignment fails if
153 * this is larger than INT_MAX - 100. Use a nicely aligned limit.
154 */
155 c->MaxUniformBlockSize = MIN2(c->MaxUniformBlockSize, INT_MAX - 127);
156
157 if (c->MaxUniformBlockSize < 16384) {
158 can_ubo = false;
159 }
160
161 for (sh = 0; sh < PIPE_SHADER_TYPES; ++sh) {
162 struct gl_shader_compiler_options *options;
163 struct gl_program_constants *pc;
164 const nir_shader_compiler_options *nir_options = NULL;
165
166 bool prefer_nir = PIPE_SHADER_IR_NIR ==
167 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_PREFERRED_IR);
168
169 if (screen->get_compiler_options && prefer_nir) {
170 nir_options = (const nir_shader_compiler_options *)
171 screen->get_compiler_options(screen, PIPE_SHADER_IR_NIR, sh);
172 }
173
174 const gl_shader_stage stage = tgsi_processor_to_shader_stage(sh);
175 pc = &c->Program[stage];
176 options = &c->ShaderCompilerOptions[stage];
177 c->ShaderCompilerOptions[stage].NirOptions = nir_options;
178
179 if (sh == PIPE_SHADER_COMPUTE) {
180 if (!screen->get_param(screen, PIPE_CAP_COMPUTE))
181 continue;
182 supported_irs =
183 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUPPORTED_IRS);
184 if (!(supported_irs & ((1 << PIPE_SHADER_IR_TGSI) |
185 (1 << PIPE_SHADER_IR_NIR))))
186 continue;
187 }
188
189 pc->MaxTextureImageUnits =
190 _min(screen->get_shader_param(screen, sh,
191 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS),
192 MAX_TEXTURE_IMAGE_UNITS);
193
194 pc->MaxInstructions =
195 pc->MaxNativeInstructions =
196 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INSTRUCTIONS);
197 pc->MaxAluInstructions =
198 pc->MaxNativeAluInstructions =
199 screen->get_shader_param(screen, sh,
200 PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS);
201 pc->MaxTexInstructions =
202 pc->MaxNativeTexInstructions =
203 screen->get_shader_param(screen, sh,
204 PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS);
205 pc->MaxTexIndirections =
206 pc->MaxNativeTexIndirections =
207 screen->get_shader_param(screen, sh,
208 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS);
209 pc->MaxAttribs =
210 pc->MaxNativeAttribs =
211 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS);
212 pc->MaxTemps =
213 pc->MaxNativeTemps =
214 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_TEMPS);
215 pc->MaxAddressRegs =
216 pc->MaxNativeAddressRegs = sh == PIPE_SHADER_VERTEX ? 1 : 0;
217
218 pc->MaxUniformComponents =
219 screen->get_shader_param(screen, sh,
220 PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE) / 4;
221 pc->MaxUniformComponents = MIN2(pc->MaxUniformComponents,
222 MAX_UNIFORMS * 4);
223
224 /* For ARB programs, prog_src_register::Index is a signed 13-bit number.
225 * This gives us a limit of 4096 values - but we may need to generate
226 * internal values in addition to what the source program uses. So, we
227 * drop the limit one step lower, to 2048, to be safe.
228 */
229 pc->MaxParameters =
230 pc->MaxNativeParameters = MIN2(pc->MaxUniformComponents / 4, 2048);
231 pc->MaxInputComponents =
232 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS) * 4;
233 pc->MaxOutputComponents =
234 screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_OUTPUTS) * 4;
235
236
237 pc->MaxUniformBlocks =
238 screen->get_shader_param(screen, sh,
239 PIPE_SHADER_CAP_MAX_CONST_BUFFERS);
240 if (pc->MaxUniformBlocks)
241 pc->MaxUniformBlocks -= 1; /* The first one is for ordinary uniforms. */
242 pc->MaxUniformBlocks = _min(pc->MaxUniformBlocks, MAX_UNIFORM_BUFFERS);
243
244 pc->MaxCombinedUniformComponents =
245 pc->MaxUniformComponents +
246 (uint64_t)c->MaxUniformBlockSize / 4 * pc->MaxUniformBlocks;
247
248 pc->MaxShaderStorageBlocks =
249 screen->get_shader_param(screen, sh,
250 PIPE_SHADER_CAP_MAX_SHADER_BUFFERS);
251
252 temp = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS);
253 if (temp) {
254 /*
255 * for separate atomic counters get the actual hw limits
256 * per stage on atomic counters and buffers
257 */
258 pc->MaxAtomicCounters = temp;
259 pc->MaxAtomicBuffers = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS);
260 } else if (pc->MaxShaderStorageBlocks) {
261 pc->MaxAtomicCounters = MAX_ATOMIC_COUNTERS;
262 /*
263 * without separate atomic counters, reserve half of the available
264 * SSBOs for atomic buffers, and the other half for normal SSBOs.
265 */
266 pc->MaxAtomicBuffers = pc->MaxShaderStorageBlocks / 2;
267 pc->MaxShaderStorageBlocks -= pc->MaxAtomicBuffers;
268 }
269 pc->MaxImageUniforms = screen->get_shader_param(
270 screen, sh, PIPE_SHADER_CAP_MAX_SHADER_IMAGES);
271
272 /* Gallium doesn't really care about local vs. env parameters so use the
273 * same limits.
274 */
275 pc->MaxLocalParams = MIN2(pc->MaxParameters, MAX_PROGRAM_LOCAL_PARAMS);
276 pc->MaxEnvParams = MIN2(pc->MaxParameters, MAX_PROGRAM_ENV_PARAMS);
277
278 if (screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_INTEGERS)) {
279 pc->LowInt.RangeMin = 31;
280 pc->LowInt.RangeMax = 30;
281 pc->LowInt.Precision = 0;
282 pc->MediumInt = pc->HighInt = pc->LowInt;
283 }
284
285 /* TODO: make these more fine-grained if anyone needs it */
286 options->MaxIfDepth =
287 screen->get_shader_param(screen, sh,
288 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
289 options->EmitNoLoops =
290 !screen->get_shader_param(screen, sh,
291 PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH);
292 options->EmitNoMainReturn =
293 !screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_SUBROUTINES);
294
295 options->EmitNoCont =
296 !screen->get_shader_param(screen, sh,
297 PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED);
298
299 options->EmitNoIndirectInput =
300 !screen->get_shader_param(screen, sh,
301 PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR);
302 options->EmitNoIndirectOutput =
303 !screen->get_shader_param(screen, sh,
304 PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR);
305 options->EmitNoIndirectTemp =
306 !screen->get_shader_param(screen, sh,
307 PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR);
308 options->EmitNoIndirectUniform =
309 !screen->get_shader_param(screen, sh,
310 PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
311
312 if (pc->MaxNativeInstructions &&
313 (options->EmitNoIndirectUniform || pc->MaxUniformBlocks < 12)) {
314 can_ubo = false;
315 }
316
317 if (options->EmitNoLoops)
318 options->MaxUnrollIterations =
319 MIN2(screen->get_shader_param(screen, sh,
320 PIPE_SHADER_CAP_MAX_INSTRUCTIONS),
321 65536);
322 else
323 options->MaxUnrollIterations =
324 screen->get_shader_param(screen, sh,
325 PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT);
326
327 if (!screen->get_param(screen, PIPE_CAP_NIR_COMPACT_ARRAYS))
328 options->LowerCombinedClipCullDistance = true;
329
330 /* NIR can do the lowering on our behalf and we'll get better results
331 * because it can actually optimize SSBO access.
332 */
333 options->LowerBufferInterfaceBlocks = !prefer_nir;
334
335 if (sh == MESA_SHADER_VERTEX) {
336 if (screen->get_param(screen, PIPE_CAP_VIEWPORT_TRANSFORM_LOWERED))
337 options->LowerBuiltinVariablesXfb |= VARYING_BIT_POS;
338 if (screen->get_param(screen, PIPE_CAP_PSIZ_CLAMPED))
339 options->LowerBuiltinVariablesXfb |= VARYING_BIT_PSIZ;
340 }
341 }
342
343 c->MaxUserAssignableUniformLocations =
344 c->Program[MESA_SHADER_VERTEX].MaxUniformComponents +
345 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformComponents +
346 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformComponents +
347 c->Program[MESA_SHADER_GEOMETRY].MaxUniformComponents +
348 c->Program[MESA_SHADER_FRAGMENT].MaxUniformComponents;
349
350 c->GLSLOptimizeConservatively =
351 screen->get_param(screen, PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY);
352 c->GLSLLowerConstArrays =
353 screen->get_param(screen, PIPE_CAP_PREFER_IMM_ARRAYS_AS_CONSTBUF);
354 c->GLSLTessLevelsAsInputs =
355 screen->get_param(screen, PIPE_CAP_GLSL_TESS_LEVELS_AS_INPUTS);
356 c->LowerTessLevel =
357 !screen->get_param(screen, PIPE_CAP_NIR_COMPACT_ARRAYS);
358 c->LowerCsDerivedVariables =
359 !screen->get_param(screen, PIPE_CAP_CS_DERIVED_SYSTEM_VALUES_SUPPORTED);
360 c->PrimitiveRestartForPatches =
361 screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES);
362
363 c->MaxCombinedTextureImageUnits =
364 _min(c->Program[MESA_SHADER_VERTEX].MaxTextureImageUnits +
365 c->Program[MESA_SHADER_TESS_CTRL].MaxTextureImageUnits +
366 c->Program[MESA_SHADER_TESS_EVAL].MaxTextureImageUnits +
367 c->Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits +
368 c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits +
369 c->Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits,
370 MAX_COMBINED_TEXTURE_IMAGE_UNITS);
371
372 /* This depends on program constants. */
373 c->MaxTextureCoordUnits
374 = _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
375 MAX_TEXTURE_COORD_UNITS);
376
377 c->MaxTextureUnits =
378 _min(c->Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits,
379 c->MaxTextureCoordUnits);
380
381 c->Program[MESA_SHADER_VERTEX].MaxAttribs =
382 MIN2(c->Program[MESA_SHADER_VERTEX].MaxAttribs, 16);
383
384 c->MaxVarying = screen->get_param(screen, PIPE_CAP_MAX_VARYINGS);
385 c->MaxVarying = MIN2(c->MaxVarying, MAX_VARYING);
386 c->MaxGeometryOutputVertices =
387 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES);
388 c->MaxGeometryTotalOutputComponents =
389 screen->get_param(screen, PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS);
390 c->MaxGeometryShaderInvocations =
391 screen->get_param(screen, PIPE_CAP_MAX_GS_INVOCATIONS);
392 c->MaxTessPatchComponents =
393 MIN2(screen->get_param(screen, PIPE_CAP_MAX_SHADER_PATCH_VARYINGS),
394 MAX_VARYING) * 4;
395
396 c->MinProgramTexelOffset =
397 screen->get_param(screen, PIPE_CAP_MIN_TEXEL_OFFSET);
398 c->MaxProgramTexelOffset =
399 screen->get_param(screen, PIPE_CAP_MAX_TEXEL_OFFSET);
400
401 c->MaxProgramTextureGatherComponents =
402 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS);
403 c->MinProgramTextureGatherOffset =
404 screen->get_param(screen, PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET);
405 c->MaxProgramTextureGatherOffset =
406 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET);
407
408 c->MaxTransformFeedbackBuffers =
409 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS);
410 c->MaxTransformFeedbackBuffers = MIN2(c->MaxTransformFeedbackBuffers,
411 MAX_FEEDBACK_BUFFERS);
412 c->MaxTransformFeedbackSeparateComponents =
413 screen->get_param(screen, PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS);
414 c->MaxTransformFeedbackInterleavedComponents =
415 screen->get_param(screen,
416 PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS);
417 c->MaxVertexStreams =
418 MAX2(1, screen->get_param(screen, PIPE_CAP_MAX_VERTEX_STREAMS));
419
420 /* The vertex stream must fit into pipe_stream_output_info::stream */
421 assert(c->MaxVertexStreams <= 4);
422
423 c->MaxVertexAttribStride
424 = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE);
425
426 /* The value cannot be larger than that since pipe_vertex_buffer::src_offset
427 * is only 16 bits.
428 */
429 temp = screen->get_param(screen, PIPE_CAP_MAX_VERTEX_ELEMENT_SRC_OFFSET);
430 c->MaxVertexAttribRelativeOffset = MIN2(0xffff, temp);
431
432 c->StripTextureBorder = GL_TRUE;
433
434 c->GLSLSkipStrictMaxUniformLimitCheck =
435 screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS);
436
437 c->UniformBufferOffsetAlignment =
438 screen->get_param(screen, PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT);
439
440 if (can_ubo) {
441 extensions->ARB_uniform_buffer_object = GL_TRUE;
442 c->MaxCombinedUniformBlocks = c->MaxUniformBufferBindings =
443 c->Program[MESA_SHADER_VERTEX].MaxUniformBlocks +
444 c->Program[MESA_SHADER_TESS_CTRL].MaxUniformBlocks +
445 c->Program[MESA_SHADER_TESS_EVAL].MaxUniformBlocks +
446 c->Program[MESA_SHADER_GEOMETRY].MaxUniformBlocks +
447 c->Program[MESA_SHADER_FRAGMENT].MaxUniformBlocks +
448 c->Program[MESA_SHADER_COMPUTE].MaxUniformBlocks;
449 assert(c->MaxCombinedUniformBlocks <= MAX_COMBINED_UNIFORM_BUFFERS);
450 }
451
452 c->GLSLFragCoordIsSysVal =
453 screen->get_param(screen, PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL);
454 c->GLSLPointCoordIsSysVal =
455 screen->get_param(screen, PIPE_CAP_TGSI_FS_POINT_IS_SYSVAL);
456 c->GLSLFrontFacingIsSysVal =
457 screen->get_param(screen, PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL);
458
459 /* GL_ARB_get_program_binary */
460 if (screen->get_disk_shader_cache && screen->get_disk_shader_cache(screen))
461 c->NumProgramBinaryFormats = 1;
462
463 c->MaxAtomicBufferBindings =
464 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
465 c->MaxAtomicBufferSize =
466 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicCounters * ATOMIC_COUNTER_SIZE;
467
468 c->MaxCombinedAtomicBuffers =
469 MIN2(screen->get_param(screen,
470 PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS),
471 MAX_COMBINED_ATOMIC_BUFFERS);
472 if (!c->MaxCombinedAtomicBuffers) {
473 c->MaxCombinedAtomicBuffers =
474 c->Program[MESA_SHADER_VERTEX].MaxAtomicBuffers +
475 c->Program[MESA_SHADER_TESS_CTRL].MaxAtomicBuffers +
476 c->Program[MESA_SHADER_TESS_EVAL].MaxAtomicBuffers +
477 c->Program[MESA_SHADER_GEOMETRY].MaxAtomicBuffers +
478 c->Program[MESA_SHADER_FRAGMENT].MaxAtomicBuffers;
479 assert(c->MaxCombinedAtomicBuffers <= MAX_COMBINED_ATOMIC_BUFFERS);
480 }
481
482 c->MaxCombinedAtomicCounters =
483 screen->get_param(screen, PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS);
484 if (!c->MaxCombinedAtomicCounters)
485 c->MaxCombinedAtomicCounters = MAX_ATOMIC_COUNTERS;
486
487 if (c->MaxCombinedAtomicBuffers > 0) {
488 extensions->ARB_shader_atomic_counters = GL_TRUE;
489 extensions->ARB_shader_atomic_counter_ops = GL_TRUE;
490 }
491
492 c->MaxCombinedShaderOutputResources = c->MaxDrawBuffers;
493 c->ShaderStorageBufferOffsetAlignment =
494 screen->get_param(screen, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT);
495 if (c->ShaderStorageBufferOffsetAlignment) {
496 c->MaxCombinedShaderStorageBlocks =
497 MIN2(screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS),
498 MAX_COMBINED_SHADER_STORAGE_BUFFERS);
499 if (!c->MaxCombinedShaderStorageBlocks) {
500 c->MaxCombinedShaderStorageBlocks =
501 c->Program[MESA_SHADER_VERTEX].MaxShaderStorageBlocks +
502 c->Program[MESA_SHADER_TESS_CTRL].MaxShaderStorageBlocks +
503 c->Program[MESA_SHADER_TESS_EVAL].MaxShaderStorageBlocks +
504 c->Program[MESA_SHADER_GEOMETRY].MaxShaderStorageBlocks +
505 c->Program[MESA_SHADER_FRAGMENT].MaxShaderStorageBlocks;
506 assert(c->MaxCombinedShaderStorageBlocks < MAX_COMBINED_SHADER_STORAGE_BUFFERS);
507 }
508 c->MaxShaderStorageBufferBindings = c->MaxCombinedShaderStorageBlocks;
509
510 c->MaxCombinedShaderOutputResources +=
511 c->MaxCombinedShaderStorageBlocks;
512 c->MaxShaderStorageBlockSize =
513 screen->get_param(screen, PIPE_CAP_MAX_SHADER_BUFFER_SIZE);
514 extensions->ARB_shader_storage_buffer_object = GL_TRUE;
515 }
516
517 c->MaxCombinedImageUniforms =
518 c->Program[MESA_SHADER_VERTEX].MaxImageUniforms +
519 c->Program[MESA_SHADER_TESS_CTRL].MaxImageUniforms +
520 c->Program[MESA_SHADER_TESS_EVAL].MaxImageUniforms +
521 c->Program[MESA_SHADER_GEOMETRY].MaxImageUniforms +
522 c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms +
523 c->Program[MESA_SHADER_COMPUTE].MaxImageUniforms;
524 c->MaxCombinedShaderOutputResources += c->MaxCombinedImageUniforms;
525 c->MaxImageUnits = MAX_IMAGE_UNITS;
526 if (c->MaxCombinedImageUniforms) {
527 extensions->ARB_shader_image_load_store = GL_TRUE;
528 extensions->ARB_shader_image_size = GL_TRUE;
529 }
530
531 /* ARB_framebuffer_no_attachments */
532 c->MaxFramebufferWidth = c->MaxViewportWidth;
533 c->MaxFramebufferHeight = c->MaxViewportHeight;
534 /* NOTE: we cheat here a little by assuming that
535 * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
536 * number of layers as we need, although we technically
537 * could have more the generality is not really useful
538 * in practicality.
539 */
540 c->MaxFramebufferLayers =
541 screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
542
543 c->MaxWindowRectangles =
544 screen->get_param(screen, PIPE_CAP_MAX_WINDOW_RECTANGLES);
545
546 c->SparseBufferPageSize =
547 screen->get_param(screen, PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE);
548
549 c->AllowMappedBuffersDuringExecution =
550 screen->get_param(screen, PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION);
551
552 c->UseSTD430AsDefaultPacking =
553 screen->get_param(screen, PIPE_CAP_LOAD_CONSTBUF);
554
555 c->MaxSubpixelPrecisionBiasBits =
556 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS);
557
558 c->ConservativeRasterDilateRange[0] =
559 screen->get_paramf(screen, PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE);
560 c->ConservativeRasterDilateRange[1] =
561 screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
562 c->ConservativeRasterDilateGranularity =
563 screen->get_paramf(screen, PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY);
564
565 /* limit the max combined shader output resources to a driver limit */
566 temp = screen->get_param(screen, PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES);
567 if (temp > 0 && c->MaxCombinedShaderOutputResources > temp)
568 c->MaxCombinedShaderOutputResources = temp;
569
570 c->VertexBufferOffsetIsInt32 =
571 screen->get_param(screen, PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET);
572
573 c->MultiDrawWithUserIndices =
574 screen->get_param(screen, PIPE_CAP_DRAW_INFO_START_WITH_USER_INDICES);
575 }
576
577
578 /**
579 * Given a member \c x of struct gl_extensions, return offset of
580 * \c x in bytes.
581 */
582 #define o(x) offsetof(struct gl_extensions, x)
583
584
585 struct st_extension_cap_mapping {
586 int extension_offset;
587 int cap;
588 };
589
590 struct st_extension_format_mapping {
591 int extension_offset[2];
592 enum pipe_format format[32];
593
594 /* If TRUE, at least one format must be supported for the extensions to be
595 * advertised. If FALSE, all the formats must be supported. */
596 GLboolean need_at_least_one;
597 };
598
599 /**
600 * Enable extensions if certain pipe formats are supported by the driver.
601 * What extensions will be enabled and what formats must be supported is
602 * described by the array of st_extension_format_mapping.
603 *
604 * target and bind_flags are passed to is_format_supported.
605 */
606 static void
607 init_format_extensions(struct pipe_screen *screen,
608 struct gl_extensions *extensions,
609 const struct st_extension_format_mapping *mapping,
610 unsigned num_mappings,
611 enum pipe_texture_target target,
612 unsigned bind_flags)
613 {
614 GLboolean *extension_table = (GLboolean *) extensions;
615 unsigned i;
616 int j;
617 int num_formats = ARRAY_SIZE(mapping->format);
618 int num_ext = ARRAY_SIZE(mapping->extension_offset);
619
620 for (i = 0; i < num_mappings; i++) {
621 int num_supported = 0;
622
623 /* Examine each format in the list. */
624 for (j = 0; j < num_formats && mapping[i].format[j]; j++) {
625 if (screen->is_format_supported(screen, mapping[i].format[j],
626 target, 0, 0, bind_flags)) {
627 num_supported++;
628 }
629 }
630
631 if (!num_supported ||
632 (!mapping[i].need_at_least_one && num_supported != j)) {
633 continue;
634 }
635
636 /* Enable all extensions in the list. */
637 for (j = 0; j < num_ext && mapping[i].extension_offset[j]; j++)
638 extension_table[mapping[i].extension_offset[j]] = GL_TRUE;
639 }
640 }
641
642
643 /**
644 * Given a list of formats and bind flags, return the maximum number
645 * of samples supported by any of those formats.
646 */
647 static unsigned
648 get_max_samples_for_formats(struct pipe_screen *screen,
649 unsigned num_formats,
650 const enum pipe_format *formats,
651 unsigned max_samples,
652 unsigned bind)
653 {
654 unsigned i, f;
655
656 for (i = max_samples; i > 0; --i) {
657 for (f = 0; f < num_formats; f++) {
658 if (screen->is_format_supported(screen, formats[f],
659 PIPE_TEXTURE_2D, i, i, bind)) {
660 return i;
661 }
662 }
663 }
664 return 0;
665 }
666
667 static unsigned
668 get_max_samples_for_formats_advanced(struct pipe_screen *screen,
669 unsigned num_formats,
670 const enum pipe_format *formats,
671 unsigned max_samples,
672 unsigned num_storage_samples,
673 unsigned bind)
674 {
675 unsigned i, f;
676
677 for (i = max_samples; i > 0; --i) {
678 for (f = 0; f < num_formats; f++) {
679 if (screen->is_format_supported(screen, formats[f], PIPE_TEXTURE_2D,
680 i, num_storage_samples, bind)) {
681 return i;
682 }
683 }
684 }
685 return 0;
686 }
687
688 /**
689 * Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
690 * which GL extensions are supported.
691 * Quite a few extensions are always supported because they are standard
692 * features or can be built on top of other gallium features.
693 * Some fine tuning may still be needed.
694 */
695 void st_init_extensions(struct pipe_screen *screen,
696 struct gl_constants *consts,
697 struct gl_extensions *extensions,
698 struct st_config_options *options,
699 gl_api api)
700 {
701 unsigned i;
702 GLboolean *extension_table = (GLboolean *) extensions;
703
704 static const struct st_extension_cap_mapping cap_mapping[] = {
705 { o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
706 { o(ARB_bindless_texture), PIPE_CAP_BINDLESS_TEXTURE },
707 { o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
708 { o(ARB_clear_texture), PIPE_CAP_CLEAR_TEXTURE },
709 { o(ARB_clip_control), PIPE_CAP_CLIP_HALFZ },
710 { o(ARB_color_buffer_float), PIPE_CAP_VERTEX_COLOR_UNCLAMPED },
711 { o(ARB_conditional_render_inverted), PIPE_CAP_CONDITIONAL_RENDER_INVERTED },
712 { o(ARB_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
713 { o(OES_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
714 { o(ARB_cull_distance), PIPE_CAP_CULL_DISTANCE },
715 { o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
716 { o(ARB_derivative_control), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE },
717 { o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
718 { o(ARB_draw_indirect), PIPE_CAP_DRAW_INDIRECT },
719 { o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID },
720 { o(ARB_fragment_program_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
721 { o(ARB_framebuffer_object), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES },
722 { o(ARB_gpu_shader_int64), PIPE_CAP_INT64 },
723 { o(ARB_gl_spirv), PIPE_CAP_GL_SPIRV },
724 { o(ARB_indirect_parameters), PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS },
725 { o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
726 { o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY },
727 { o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
728 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS },
729 { o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS_SINGLE },
730 { o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE },
731 { o(ARB_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP },
732 { o(ARB_post_depth_coverage), PIPE_CAP_POST_DEPTH_COVERAGE },
733 { o(ARB_query_buffer_object), PIPE_CAP_QUERY_BUFFER_OBJECT },
734 { o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR },
735 { o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
736 { o(ARB_sample_locations), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS },
737 { o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
738 { o(ARB_shader_ballot), PIPE_CAP_TGSI_BALLOT },
739 { o(ARB_shader_clock), PIPE_CAP_TGSI_CLOCK },
740 { o(ARB_shader_draw_parameters), PIPE_CAP_DRAW_PARAMETERS },
741 { o(ARB_shader_group_vote), PIPE_CAP_TGSI_VOTE },
742 { o(EXT_shader_image_load_formatted), PIPE_CAP_IMAGE_LOAD_FORMATTED },
743 { o(EXT_shader_image_load_store), PIPE_CAP_TGSI_ATOMINC_WRAP },
744 { o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
745 { o(ARB_shader_texture_image_samples), PIPE_CAP_TGSI_TXQS },
746 { o(ARB_shader_texture_lod), PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD },
747 { o(ARB_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
748 { o(ARB_sparse_buffer), PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE },
749 { o(ARB_spirv_extensions), PIPE_CAP_GL_SPIRV },
750 { o(ARB_texture_buffer_object), PIPE_CAP_TEXTURE_BUFFER_OBJECTS },
751 { o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY },
752 { o(ARB_texture_gather), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS },
753 { o(ARB_texture_mirror_clamp_to_edge), PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE },
754 { o(ARB_texture_multisample), PIPE_CAP_TEXTURE_MULTISAMPLE },
755 { o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
756 { o(ARB_texture_query_lod), PIPE_CAP_TEXTURE_QUERY_LOD },
757 { o(ARB_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
758 { o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
759 { o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
760 { o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS },
761 { o(ARB_transform_feedback_overflow_query), PIPE_CAP_QUERY_SO_OVERFLOW },
762 { o(ARB_fragment_shader_interlock), PIPE_CAP_FRAGMENT_SHADER_INTERLOCK },
763
764 { o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
765 { o(EXT_demote_to_helper_invocation), PIPE_CAP_DEMOTE_TO_HELPER_INVOCATION },
766 { o(EXT_depth_bounds_test), PIPE_CAP_DEPTH_BOUNDS_TEST },
767 { o(EXT_disjoint_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
768 { o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
769 { o(EXT_memory_object), PIPE_CAP_MEMOBJ },
770 { o(EXT_memory_object_fd), PIPE_CAP_MEMOBJ },
771 { o(EXT_multisampled_render_to_texture), PIPE_CAP_SURFACE_SAMPLE_COUNT },
772 { o(EXT_semaphore), PIPE_CAP_FENCE_SIGNAL },
773 { o(EXT_semaphore_fd), PIPE_CAP_FENCE_SIGNAL },
774 { o(EXT_shader_samples_identical), PIPE_CAP_SHADER_SAMPLES_IDENTICAL },
775 { o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
776 { o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
777 { o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
778 { o(EXT_texture_shadow_lod), PIPE_CAP_TEXTURE_SHADOW_LOD },
779 { o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
780 { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
781 { o(EXT_window_rectangles), PIPE_CAP_MAX_WINDOW_RECTANGLES },
782
783 { o(AMD_depth_clamp_separate), PIPE_CAP_DEPTH_CLIP_DISABLE_SEPARATE },
784 { o(AMD_framebuffer_multisample_advanced), PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS },
785 { o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
786 { o(ATI_meminfo), PIPE_CAP_QUERY_MEMORY_INFO },
787 { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
788 { o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
789 { o(INTEL_conservative_rasterization), PIPE_CAP_CONSERVATIVE_RASTER_INNER_COVERAGE },
790 { o(INTEL_shader_atomic_float_minmax), PIPE_CAP_ATOMIC_FLOAT_MINMAX },
791 { o(MESA_tile_raster_order), PIPE_CAP_TILE_RASTER_ORDER },
792 { o(NV_compute_shader_derivatives), PIPE_CAP_COMPUTE_SHADER_DERIVATIVES },
793 { o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
794 { o(NV_fill_rectangle), PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE },
795 { o(NV_primitive_restart), PIPE_CAP_PRIMITIVE_RESTART },
796 { o(NV_shader_atomic_float), PIPE_CAP_TGSI_ATOMFADD },
797 { o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
798 { o(NVX_gpu_memory_info), PIPE_CAP_QUERY_MEMORY_INFO },
799 /* GL_NV_point_sprite is not supported by gallium because we don't
800 * support the GL_POINT_SPRITE_R_MODE_NV option. */
801
802 { o(OES_standard_derivatives), PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES },
803 { o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
804 { o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
805 { o(OES_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
806 { o(INTEL_blackhole_render), PIPE_CAP_FRONTEND_NOOP, },
807 };
808
809 /* Required: render target and sampler support */
810 static const struct st_extension_format_mapping rendertarget_mapping[] = {
811 { { o(OES_texture_float) },
812 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
813
814 { { o(OES_texture_half_float) },
815 { PIPE_FORMAT_R16G16B16A16_FLOAT } },
816
817 { { o(ARB_texture_rgb10_a2ui) },
818 { PIPE_FORMAT_R10G10B10A2_UINT,
819 PIPE_FORMAT_B10G10R10A2_UINT },
820 GL_TRUE }, /* at least one format must be supported */
821
822 { { o(EXT_sRGB) },
823 { PIPE_FORMAT_A8B8G8R8_SRGB,
824 PIPE_FORMAT_B8G8R8A8_SRGB,
825 PIPE_FORMAT_R8G8B8A8_SRGB },
826 GL_TRUE }, /* at least one format must be supported */
827
828 { { o(EXT_packed_float) },
829 { PIPE_FORMAT_R11G11B10_FLOAT } },
830
831 { { o(EXT_texture_integer) },
832 { PIPE_FORMAT_R32G32B32A32_UINT,
833 PIPE_FORMAT_R32G32B32A32_SINT } },
834
835 { { o(ARB_texture_rg) },
836 { PIPE_FORMAT_R8_UNORM,
837 PIPE_FORMAT_R8G8_UNORM } },
838
839 { { o(EXT_texture_norm16) },
840 { PIPE_FORMAT_R16_UNORM,
841 PIPE_FORMAT_R16G16_UNORM,
842 PIPE_FORMAT_R16G16B16A16_UNORM } },
843
844 { { o(EXT_render_snorm) },
845 { PIPE_FORMAT_R8_SNORM,
846 PIPE_FORMAT_R8G8_SNORM,
847 PIPE_FORMAT_R8G8B8A8_SNORM,
848 PIPE_FORMAT_R16_SNORM,
849 PIPE_FORMAT_R16G16_SNORM,
850 PIPE_FORMAT_R16G16B16A16_SNORM } },
851 };
852
853 /* Required: render target, sampler, and blending */
854 static const struct st_extension_format_mapping rt_blendable[] = {
855 { { o(EXT_float_blend) },
856 { PIPE_FORMAT_R32G32B32A32_FLOAT } },
857 };
858
859 /* Required: depth stencil and sampler support */
860 static const struct st_extension_format_mapping depthstencil_mapping[] = {
861 { { o(ARB_depth_buffer_float) },
862 { PIPE_FORMAT_Z32_FLOAT,
863 PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
864 };
865
866 /* Required: sampler support */
867 static const struct st_extension_format_mapping texture_mapping[] = {
868 { { o(ARB_texture_compression_rgtc) },
869 { PIPE_FORMAT_RGTC1_UNORM,
870 PIPE_FORMAT_RGTC1_SNORM,
871 PIPE_FORMAT_RGTC2_UNORM,
872 PIPE_FORMAT_RGTC2_SNORM } },
873
874 { { o(EXT_texture_compression_latc) },
875 { PIPE_FORMAT_LATC1_UNORM,
876 PIPE_FORMAT_LATC1_SNORM,
877 PIPE_FORMAT_LATC2_UNORM,
878 PIPE_FORMAT_LATC2_SNORM } },
879
880 { { o(EXT_texture_compression_s3tc),
881 o(ANGLE_texture_compression_dxt) },
882 { PIPE_FORMAT_DXT1_RGB,
883 PIPE_FORMAT_DXT1_RGBA,
884 PIPE_FORMAT_DXT3_RGBA,
885 PIPE_FORMAT_DXT5_RGBA } },
886
887 { { o(EXT_texture_compression_s3tc_srgb) },
888 { PIPE_FORMAT_DXT1_SRGB,
889 PIPE_FORMAT_DXT1_SRGBA,
890 PIPE_FORMAT_DXT3_SRGBA,
891 PIPE_FORMAT_DXT5_SRGBA } },
892
893 { { o(ARB_texture_compression_bptc) },
894 { PIPE_FORMAT_BPTC_RGBA_UNORM,
895 PIPE_FORMAT_BPTC_SRGBA,
896 PIPE_FORMAT_BPTC_RGB_FLOAT,
897 PIPE_FORMAT_BPTC_RGB_UFLOAT } },
898
899 { { o(TDFX_texture_compression_FXT1) },
900 { PIPE_FORMAT_FXT1_RGB,
901 PIPE_FORMAT_FXT1_RGBA } },
902
903 { { o(KHR_texture_compression_astc_ldr),
904 o(KHR_texture_compression_astc_sliced_3d) },
905 { PIPE_FORMAT_ASTC_4x4,
906 PIPE_FORMAT_ASTC_5x4,
907 PIPE_FORMAT_ASTC_5x5,
908 PIPE_FORMAT_ASTC_6x5,
909 PIPE_FORMAT_ASTC_6x6,
910 PIPE_FORMAT_ASTC_8x5,
911 PIPE_FORMAT_ASTC_8x6,
912 PIPE_FORMAT_ASTC_8x8,
913 PIPE_FORMAT_ASTC_10x5,
914 PIPE_FORMAT_ASTC_10x6,
915 PIPE_FORMAT_ASTC_10x8,
916 PIPE_FORMAT_ASTC_10x10,
917 PIPE_FORMAT_ASTC_12x10,
918 PIPE_FORMAT_ASTC_12x12,
919 PIPE_FORMAT_ASTC_4x4_SRGB,
920 PIPE_FORMAT_ASTC_5x4_SRGB,
921 PIPE_FORMAT_ASTC_5x5_SRGB,
922 PIPE_FORMAT_ASTC_6x5_SRGB,
923 PIPE_FORMAT_ASTC_6x6_SRGB,
924 PIPE_FORMAT_ASTC_8x5_SRGB,
925 PIPE_FORMAT_ASTC_8x6_SRGB,
926 PIPE_FORMAT_ASTC_8x8_SRGB,
927 PIPE_FORMAT_ASTC_10x5_SRGB,
928 PIPE_FORMAT_ASTC_10x6_SRGB,
929 PIPE_FORMAT_ASTC_10x8_SRGB,
930 PIPE_FORMAT_ASTC_10x10_SRGB,
931 PIPE_FORMAT_ASTC_12x10_SRGB,
932 PIPE_FORMAT_ASTC_12x12_SRGB } },
933
934 /* ASTC software fallback support. */
935 { { o(KHR_texture_compression_astc_ldr),
936 o(KHR_texture_compression_astc_sliced_3d) },
937 { PIPE_FORMAT_R8G8B8A8_UNORM,
938 PIPE_FORMAT_R8G8B8A8_SRGB } },
939
940 { { o(EXT_texture_shared_exponent) },
941 { PIPE_FORMAT_R9G9B9E5_FLOAT } },
942
943 { { o(EXT_texture_snorm) },
944 { PIPE_FORMAT_R8G8B8A8_SNORM } },
945
946 { { o(EXT_texture_sRGB),
947 o(EXT_texture_sRGB_decode) },
948 { PIPE_FORMAT_A8B8G8R8_SRGB,
949 PIPE_FORMAT_B8G8R8A8_SRGB,
950 PIPE_FORMAT_A8R8G8B8_SRGB,
951 PIPE_FORMAT_R8G8B8A8_SRGB},
952 GL_TRUE }, /* at least one format must be supported */
953
954 { { o(EXT_texture_sRGB_R8) },
955 { PIPE_FORMAT_R8_SRGB },
956 GL_TRUE },
957
958 { { o(EXT_texture_type_2_10_10_10_REV) },
959 { PIPE_FORMAT_R10G10B10A2_UNORM,
960 PIPE_FORMAT_B10G10R10A2_UNORM },
961 GL_TRUE }, /* at least one format must be supported */
962
963 { { o(ATI_texture_compression_3dc) },
964 { PIPE_FORMAT_LATC2_UNORM } },
965
966 { { o(MESA_ycbcr_texture) },
967 { PIPE_FORMAT_UYVY,
968 PIPE_FORMAT_YUYV },
969 GL_TRUE }, /* at least one format must be supported */
970
971 { { o(OES_compressed_ETC1_RGB8_texture) },
972 { PIPE_FORMAT_ETC1_RGB8,
973 PIPE_FORMAT_R8G8B8A8_UNORM },
974 GL_TRUE }, /* at least one format must be supported */
975
976 { { o(ARB_stencil_texturing),
977 o(ARB_texture_stencil8) },
978 { PIPE_FORMAT_X24S8_UINT,
979 PIPE_FORMAT_S8X24_UINT },
980 GL_TRUE }, /* at least one format must be supported */
981
982 { { o(AMD_compressed_ATC_texture) },
983 { PIPE_FORMAT_ATC_RGB,
984 PIPE_FORMAT_ATC_RGBA_EXPLICIT,
985 PIPE_FORMAT_ATC_RGBA_INTERPOLATED } },
986 };
987
988 /* Required: vertex fetch support. */
989 static const struct st_extension_format_mapping vertex_mapping[] = {
990 { { o(EXT_vertex_array_bgra) },
991 { PIPE_FORMAT_B8G8R8A8_UNORM } },
992 { { o(ARB_vertex_type_2_10_10_10_rev) },
993 { PIPE_FORMAT_R10G10B10A2_UNORM,
994 PIPE_FORMAT_B10G10R10A2_UNORM,
995 PIPE_FORMAT_R10G10B10A2_SNORM,
996 PIPE_FORMAT_B10G10R10A2_SNORM,
997 PIPE_FORMAT_R10G10B10A2_USCALED,
998 PIPE_FORMAT_B10G10R10A2_USCALED,
999 PIPE_FORMAT_R10G10B10A2_SSCALED,
1000 PIPE_FORMAT_B10G10R10A2_SSCALED } },
1001 { { o(ARB_vertex_type_10f_11f_11f_rev) },
1002 { PIPE_FORMAT_R11G11B10_FLOAT } },
1003 };
1004
1005 static const struct st_extension_format_mapping tbo_rgb32[] = {
1006 { {o(ARB_texture_buffer_object_rgb32) },
1007 { PIPE_FORMAT_R32G32B32_FLOAT,
1008 PIPE_FORMAT_R32G32B32_UINT,
1009 PIPE_FORMAT_R32G32B32_SINT,
1010 } },
1011 };
1012
1013 /*
1014 * Extensions that are supported by all Gallium drivers:
1015 */
1016 extensions->ARB_ES2_compatibility = GL_TRUE;
1017 extensions->ARB_depth_texture = GL_TRUE;
1018 extensions->ARB_draw_elements_base_vertex = GL_TRUE;
1019 extensions->ARB_explicit_attrib_location = GL_TRUE;
1020 extensions->ARB_explicit_uniform_location = GL_TRUE;
1021 extensions->ARB_fragment_coord_conventions = GL_TRUE;
1022 extensions->ARB_fragment_program = GL_TRUE;
1023 extensions->ARB_fragment_shader = GL_TRUE;
1024 extensions->ARB_half_float_vertex = GL_TRUE;
1025 extensions->ARB_internalformat_query = GL_TRUE;
1026 extensions->ARB_internalformat_query2 = GL_TRUE;
1027 extensions->ARB_map_buffer_range = GL_TRUE;
1028 extensions->ARB_sync = GL_TRUE;
1029 extensions->ARB_texture_border_clamp = GL_TRUE;
1030 extensions->ARB_texture_cube_map = GL_TRUE;
1031 extensions->ARB_texture_env_combine = GL_TRUE;
1032 extensions->ARB_texture_env_crossbar = GL_TRUE;
1033 extensions->ARB_texture_env_dot3 = GL_TRUE;
1034 extensions->ARB_vertex_program = GL_TRUE;
1035 extensions->ARB_vertex_shader = GL_TRUE;
1036
1037 extensions->EXT_blend_color = GL_TRUE;
1038 extensions->EXT_blend_func_separate = GL_TRUE;
1039 extensions->EXT_blend_minmax = GL_TRUE;
1040 extensions->EXT_EGL_image_storage = GL_TRUE;
1041 extensions->EXT_gpu_program_parameters = GL_TRUE;
1042 extensions->EXT_pixel_buffer_object = GL_TRUE;
1043 extensions->EXT_point_parameters = GL_TRUE;
1044 extensions->EXT_provoking_vertex = GL_TRUE;
1045 extensions->EXT_stencil_two_side = GL_TRUE;
1046 extensions->EXT_texture_env_dot3 = GL_TRUE;
1047
1048 extensions->ATI_fragment_shader = GL_TRUE;
1049 extensions->ATI_texture_env_combine3 = GL_TRUE;
1050
1051 extensions->MESA_framebuffer_flip_y = GL_TRUE;
1052 extensions->MESA_pack_invert = GL_TRUE;
1053
1054 extensions->NV_copy_image = GL_TRUE;
1055 extensions->NV_fog_distance = GL_TRUE;
1056 extensions->NV_texture_env_combine4 = GL_TRUE;
1057 extensions->NV_texture_rectangle = GL_TRUE;
1058
1059 extensions->OES_EGL_image = GL_TRUE;
1060 extensions->OES_EGL_image_external = GL_TRUE;
1061 extensions->OES_draw_texture = GL_TRUE;
1062
1063 /* Expose the extensions which directly correspond to gallium caps. */
1064 for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
1065 if (screen->get_param(screen, cap_mapping[i].cap)) {
1066 extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
1067 }
1068 }
1069
1070 /* Expose the extensions which directly correspond to gallium formats. */
1071 init_format_extensions(screen, extensions, rendertarget_mapping,
1072 ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
1073 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
1074 init_format_extensions(screen, extensions, rt_blendable,
1075 ARRAY_SIZE(rt_blendable), PIPE_TEXTURE_2D,
1076 PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW |
1077 PIPE_BIND_BLENDABLE);
1078 init_format_extensions(screen, extensions, depthstencil_mapping,
1079 ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
1080 PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
1081 init_format_extensions(screen, extensions, texture_mapping,
1082 ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
1083 PIPE_BIND_SAMPLER_VIEW);
1084 init_format_extensions(screen, extensions, vertex_mapping,
1085 ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
1086 PIPE_BIND_VERTEX_BUFFER);
1087
1088 /* Figure out GLSL support and set GLSLVersion to it. */
1089 consts->GLSLVersion = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
1090 consts->GLSLVersionCompat =
1091 screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY);
1092
1093 const unsigned ESSLVersion =
1094 screen->get_param(screen, PIPE_CAP_ESSL_FEATURE_LEVEL);
1095 const unsigned GLSLVersion =
1096 api == API_OPENGL_COMPAT ? consts->GLSLVersionCompat :
1097 consts->GLSLVersion;
1098
1099 _mesa_override_glsl_version(consts);
1100
1101 if (options->force_glsl_version > 0 &&
1102 options->force_glsl_version <= GLSLVersion) {
1103 consts->ForceGLSLVersion = options->force_glsl_version;
1104 }
1105
1106 consts->AllowHigherCompatVersion = options->allow_higher_compat_version;
1107
1108 consts->ForceGLSLAbsSqrt = options->force_glsl_abs_sqrt;
1109
1110 consts->AllowGLSLBuiltinVariableRedeclaration = options->allow_glsl_builtin_variable_redeclaration;
1111
1112 consts->dri_config_options_sha1 = options->config_options_sha1;
1113
1114 consts->AllowGLSLCrossStageInterpolationMismatch = options->allow_glsl_cross_stage_interpolation_mismatch;
1115
1116 /* Technically we are turning on the EXT_gpu_shader5 extension,
1117 * ARB_gpu_shader5 does not exist in GLES, but this flag is what
1118 * switches on EXT_gpu_shader5:
1119 */
1120 if (api == API_OPENGLES2 && ESSLVersion >= 320)
1121 extensions->ARB_gpu_shader5 = GL_TRUE;
1122
1123 if (GLSLVersion >= 400 && !options->disable_arb_gpu_shader5)
1124 extensions->ARB_gpu_shader5 = GL_TRUE;
1125 if (GLSLVersion >= 410)
1126 extensions->ARB_shader_precision = GL_TRUE;
1127
1128 /* This extension needs full OpenGL 3.2, but we don't know if that's
1129 * supported at this point. Only check the GLSL version. */
1130 if (GLSLVersion >= 150 &&
1131 screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT)) {
1132 extensions->AMD_vertex_shader_layer = GL_TRUE;
1133 }
1134
1135 if (GLSLVersion >= 140) {
1136 /* Since GLSL 1.40 has support for all of the features of gpu_shader4,
1137 * we can always expose it if the driver can do 140. Supporting
1138 * gpu_shader4 on drivers without GLSL 1.40 is left for a future
1139 * pipe cap.
1140 */
1141 extensions->EXT_gpu_shader4 = GL_TRUE;
1142 extensions->EXT_texture_buffer_object = GL_TRUE;
1143
1144 if (screen->get_param(screen, PIPE_CAP_TGSI_ARRAY_COMPONENTS))
1145 extensions->ARB_enhanced_layouts = GL_TRUE;
1146 }
1147
1148 if (GLSLVersion >= 130) {
1149 consts->NativeIntegers = GL_TRUE;
1150 consts->MaxClipPlanes = 8;
1151
1152 if (screen->get_param(screen, PIPE_CAP_VERTEXID_NOBASE)) {
1153 consts->VertexID_is_zero_based = GL_TRUE;
1154 }
1155
1156 /* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
1157 extensions->ARB_conservative_depth = GL_TRUE;
1158 extensions->ARB_shading_language_packing = GL_TRUE;
1159 extensions->OES_depth_texture_cube_map = GL_TRUE;
1160 extensions->ARB_shading_language_420pack = GL_TRUE;
1161 extensions->ARB_texture_query_levels = GL_TRUE;
1162
1163 extensions->ARB_shader_bit_encoding = GL_TRUE;
1164
1165 extensions->EXT_shader_integer_mix = GL_TRUE;
1166 extensions->ARB_arrays_of_arrays = GL_TRUE;
1167 extensions->MESA_shader_integer_functions = GL_TRUE;
1168
1169 if (screen->get_param(screen, PIPE_CAP_OPENCL_INTEGER_FUNCTIONS) &&
1170 screen->get_param(screen, PIPE_CAP_INTEGER_MULTIPLY_32X16)) {
1171 extensions->INTEL_shader_integer_functions2 = GL_TRUE;
1172 }
1173 } else {
1174 /* Optional integer support for GLSL 1.2. */
1175 if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1176 PIPE_SHADER_CAP_INTEGERS) &&
1177 screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1178 PIPE_SHADER_CAP_INTEGERS)) {
1179 consts->NativeIntegers = GL_TRUE;
1180
1181 extensions->EXT_shader_integer_mix = GL_TRUE;
1182 }
1183
1184 /* Integer textures make no sense before GLSL 1.30 */
1185 extensions->EXT_texture_integer = GL_FALSE;
1186 }
1187
1188 consts->GLSLZeroInit = options->glsl_zero_init;
1189
1190 consts->VendorOverride = options->force_gl_vendor;
1191
1192 consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
1193
1194 /* Below are the cases which cannot be moved into tables easily. */
1195
1196 /* The compatibility profile also requires GLSLVersionCompat >= 400. */
1197 if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
1198 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0 &&
1199 (api != API_OPENGL_COMPAT || consts->GLSLVersionCompat >= 400)) {
1200 extensions->ARB_tessellation_shader = GL_TRUE;
1201 }
1202
1203 /* What this is really checking for is the ability to support multiple
1204 * invocations of a geometry shader. There is no separate cap for that, so
1205 * we check the GLSLVersion.
1206 */
1207 if ((GLSLVersion >= 400 || ESSLVersion >= 310) &&
1208 screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
1209 PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
1210 extensions->OES_geometry_shader = GL_TRUE;
1211 }
1212
1213 /* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
1214 * ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
1215 */
1216 extensions->OES_sample_variables = extensions->ARB_sample_shading &&
1217 extensions->ARB_gpu_shader5;
1218
1219 /* Maximum sample count. */
1220 {
1221 static const enum pipe_format color_formats[] = {
1222 PIPE_FORMAT_R8G8B8A8_UNORM,
1223 PIPE_FORMAT_B8G8R8A8_UNORM,
1224 PIPE_FORMAT_A8R8G8B8_UNORM,
1225 PIPE_FORMAT_A8B8G8R8_UNORM,
1226 };
1227 static const enum pipe_format depth_formats[] = {
1228 PIPE_FORMAT_Z16_UNORM,
1229 PIPE_FORMAT_Z24X8_UNORM,
1230 PIPE_FORMAT_X8Z24_UNORM,
1231 PIPE_FORMAT_Z32_UNORM,
1232 PIPE_FORMAT_Z32_FLOAT
1233 };
1234 static const enum pipe_format int_formats[] = {
1235 PIPE_FORMAT_R8G8B8A8_SINT
1236 };
1237 static const enum pipe_format void_formats[] = {
1238 PIPE_FORMAT_NONE
1239 };
1240
1241 consts->MaxSamples =
1242 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1243 color_formats, 16,
1244 PIPE_BIND_RENDER_TARGET);
1245
1246 consts->MaxImageSamples =
1247 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1248 color_formats, 16,
1249 PIPE_BIND_SHADER_IMAGE);
1250
1251 consts->MaxColorTextureSamples =
1252 get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
1253 color_formats, consts->MaxSamples,
1254 PIPE_BIND_SAMPLER_VIEW);
1255
1256 consts->MaxDepthTextureSamples =
1257 get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
1258 depth_formats, consts->MaxSamples,
1259 PIPE_BIND_SAMPLER_VIEW);
1260
1261 consts->MaxIntegerSamples =
1262 get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
1263 int_formats, consts->MaxSamples,
1264 PIPE_BIND_SAMPLER_VIEW);
1265
1266 /* ARB_framebuffer_no_attachments, assume max no. of samples 32 */
1267 consts->MaxFramebufferSamples =
1268 get_max_samples_for_formats(screen, ARRAY_SIZE(void_formats),
1269 void_formats, 32,
1270 PIPE_BIND_RENDER_TARGET);
1271
1272 if (extensions->AMD_framebuffer_multisample_advanced) {
1273 /* AMD_framebuffer_multisample_advanced */
1274 /* This can be greater than storage samples. */
1275 consts->MaxColorFramebufferSamples =
1276 get_max_samples_for_formats_advanced(screen,
1277 ARRAY_SIZE(color_formats),
1278 color_formats, 16,
1279 consts->MaxSamples,
1280 PIPE_BIND_RENDER_TARGET);
1281
1282 /* If the driver supports N color samples, it means it supports
1283 * N samples and N storage samples. N samples >= N storage
1284 * samples.
1285 */
1286 consts->MaxColorFramebufferStorageSamples = consts->MaxSamples;
1287 consts->MaxDepthStencilFramebufferSamples =
1288 consts->MaxDepthTextureSamples;
1289
1290 assert(consts->MaxColorFramebufferSamples >=
1291 consts->MaxDepthStencilFramebufferSamples);
1292 assert(consts->MaxDepthStencilFramebufferSamples >=
1293 consts->MaxColorFramebufferStorageSamples);
1294
1295 consts->NumSupportedMultisampleModes = 0;
1296
1297 unsigned depth_samples_supported = 0;
1298
1299 for (unsigned samples = 2;
1300 samples <= consts->MaxDepthStencilFramebufferSamples;
1301 samples++) {
1302 if (screen->is_format_supported(screen, PIPE_FORMAT_Z32_FLOAT,
1303 PIPE_TEXTURE_2D, samples, samples,
1304 PIPE_BIND_DEPTH_STENCIL))
1305 depth_samples_supported |= 1 << samples;
1306 }
1307
1308 for (unsigned samples = 2;
1309 samples <= consts->MaxColorFramebufferSamples;
1310 samples++) {
1311 for (unsigned depth_samples = 2;
1312 depth_samples <= samples; depth_samples++) {
1313 if (!(depth_samples_supported & (1 << depth_samples)))
1314 continue;
1315
1316 for (unsigned storage_samples = 2;
1317 storage_samples <= depth_samples; storage_samples++) {
1318 if (screen->is_format_supported(screen,
1319 PIPE_FORMAT_R8G8B8A8_UNORM,
1320 PIPE_TEXTURE_2D,
1321 samples,
1322 storage_samples,
1323 PIPE_BIND_RENDER_TARGET)) {
1324 unsigned i = consts->NumSupportedMultisampleModes;
1325
1326 assert(i < ARRAY_SIZE(consts->SupportedMultisampleModes));
1327 consts->SupportedMultisampleModes[i].NumColorSamples =
1328 samples;
1329 consts->SupportedMultisampleModes[i].NumColorStorageSamples =
1330 storage_samples;
1331 consts->SupportedMultisampleModes[i].NumDepthStencilSamples =
1332 depth_samples;
1333 consts->NumSupportedMultisampleModes++;
1334 }
1335 }
1336 }
1337 }
1338 }
1339 }
1340
1341 if (consts->MaxSamples >= 2) {
1342 /* Real MSAA support */
1343 extensions->EXT_framebuffer_multisample = GL_TRUE;
1344 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1345 }
1346 else if (consts->MaxSamples > 0 &&
1347 screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
1348 /* fake MSAA support */
1349 consts->FakeSWMSAA = GL_TRUE;
1350 extensions->EXT_framebuffer_multisample = GL_TRUE;
1351 extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
1352 extensions->ARB_texture_multisample = GL_TRUE;
1353 }
1354
1355 if (consts->MaxDualSourceDrawBuffers > 0 &&
1356 !options->disable_blend_func_extended)
1357 extensions->ARB_blend_func_extended = GL_TRUE;
1358
1359 if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
1360 extensions->ARB_timer_query) {
1361 extensions->EXT_timer_query = GL_TRUE;
1362 }
1363
1364 if (extensions->ARB_transform_feedback2 &&
1365 extensions->ARB_draw_instanced) {
1366 extensions->ARB_transform_feedback_instanced = GL_TRUE;
1367 }
1368 if (options->force_glsl_extensions_warn)
1369 consts->ForceGLSLExtensionsWarn = 1;
1370
1371 if (options->disable_glsl_line_continuations)
1372 consts->DisableGLSLLineContinuations = 1;
1373
1374 if (options->allow_glsl_extension_directive_midshader)
1375 consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
1376
1377 if (options->allow_glsl_builtin_const_expression)
1378 consts->AllowGLSLBuiltinConstantExpression = GL_TRUE;
1379
1380 if (options->allow_glsl_relaxed_es)
1381 consts->AllowGLSLRelaxedES = GL_TRUE;
1382
1383 if (options->allow_glsl_layout_qualifier_on_function_parameters)
1384 consts->AllowLayoutQualifiersOnFunctionParameters = GL_TRUE;
1385
1386 consts->MinMapBufferAlignment =
1387 screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
1388
1389 /* The OpenGL Compatibility profile requires arbitrary buffer swizzling. */
1390 if (api == API_OPENGL_COMPAT &&
1391 screen->get_param(screen, PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY))
1392 extensions->ARB_texture_buffer_object = GL_FALSE;
1393
1394 if (extensions->ARB_texture_buffer_object) {
1395 consts->MaxTextureBufferSize =
1396 _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
1397 (1u << 31) - 1);
1398 consts->TextureBufferOffsetAlignment =
1399 screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
1400
1401 if (consts->TextureBufferOffsetAlignment)
1402 extensions->ARB_texture_buffer_range = GL_TRUE;
1403
1404 init_format_extensions(screen, extensions, tbo_rgb32,
1405 ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
1406 PIPE_BIND_SAMPLER_VIEW);
1407 }
1408
1409 extensions->OES_texture_buffer =
1410 extensions->ARB_texture_buffer_object &&
1411 extensions->ARB_texture_buffer_range &&
1412 extensions->ARB_texture_buffer_object_rgb32 &&
1413 extensions->ARB_shader_image_load_store;
1414
1415 extensions->EXT_framebuffer_sRGB =
1416 screen->get_param(screen, PIPE_CAP_DEST_SURFACE_SRGB_CONTROL) &&
1417 extensions->EXT_sRGB;
1418
1419 /* Unpacking a varying in the fragment shader costs 1 texture indirection.
1420 * If the number of available texture indirections is very limited, then we
1421 * prefer to disable varying packing rather than run the risk of varying
1422 * packing preventing a shader from running.
1423 */
1424 if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
1425 PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
1426 /* We can't disable varying packing if transform feedback is available,
1427 * because transform feedback code assumes a packed varying layout.
1428 */
1429 if (!extensions->EXT_transform_feedback)
1430 consts->DisableVaryingPacking = GL_TRUE;
1431 }
1432
1433 if (!screen->get_param(screen, PIPE_CAP_PACKED_STREAM_OUTPUT))
1434 consts->DisableTransformFeedbackPacking = GL_TRUE;
1435
1436 unsigned max_fb_fetch_rts = screen->get_param(screen, PIPE_CAP_FBFETCH);
1437 bool coherent_fb_fetch =
1438 screen->get_param(screen, PIPE_CAP_FBFETCH_COHERENT);
1439
1440 if (max_fb_fetch_rts > 0) {
1441 extensions->KHR_blend_equation_advanced = true;
1442 extensions->KHR_blend_equation_advanced_coherent = coherent_fb_fetch;
1443
1444 if (max_fb_fetch_rts >=
1445 screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS)) {
1446 extensions->EXT_shader_framebuffer_fetch_non_coherent = true;
1447 extensions->EXT_shader_framebuffer_fetch = coherent_fb_fetch;
1448 }
1449 }
1450
1451 consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
1452 if (consts->MaxViewports >= 16) {
1453 if (GLSLVersion >= 400) {
1454 consts->ViewportBounds.Min = -32768.0;
1455 consts->ViewportBounds.Max = 32767.0;
1456 } else {
1457 consts->ViewportBounds.Min = -16384.0;
1458 consts->ViewportBounds.Max = 16383.0;
1459 }
1460 extensions->ARB_viewport_array = GL_TRUE;
1461 extensions->ARB_fragment_layer_viewport = GL_TRUE;
1462 if (extensions->AMD_vertex_shader_layer)
1463 extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
1464 }
1465
1466 if (extensions->AMD_vertex_shader_layer &&
1467 extensions->AMD_vertex_shader_viewport_index &&
1468 screen->get_param(screen, PIPE_CAP_TGSI_TES_LAYER_VIEWPORT))
1469 extensions->ARB_shader_viewport_layer_array = GL_TRUE;
1470
1471 /* ARB_framebuffer_no_attachments */
1472 if (screen->get_param(screen, PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT) &&
1473 ((consts->MaxSamples >= 4 && consts->MaxFramebufferLayers >= 2048) ||
1474 (consts->MaxFramebufferSamples >= consts->MaxSamples &&
1475 consts->MaxFramebufferLayers >= consts->MaxArrayTextureLayers)))
1476 extensions->ARB_framebuffer_no_attachments = GL_TRUE;
1477
1478 /* GL_ARB_ES3_compatibility.
1479 * Check requirements for GLSL ES 3.00.
1480 */
1481 if (GLSLVersion >= 130 &&
1482 extensions->ARB_uniform_buffer_object &&
1483 extensions->NV_primitive_restart &&
1484 screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
1485 PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) >= 16 &&
1486 /* Requirements for ETC2 emulation. */
1487 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
1488 PIPE_TEXTURE_2D, 0, 0,
1489 PIPE_BIND_SAMPLER_VIEW) &&
1490 screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
1491 PIPE_TEXTURE_2D, 0, 0,
1492 PIPE_BIND_SAMPLER_VIEW) &&
1493 screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
1494 PIPE_TEXTURE_2D, 0, 0,
1495 PIPE_BIND_SAMPLER_VIEW) &&
1496 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
1497 PIPE_TEXTURE_2D, 0, 0,
1498 PIPE_BIND_SAMPLER_VIEW) &&
1499 screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
1500 PIPE_TEXTURE_2D, 0, 0,
1501 PIPE_BIND_SAMPLER_VIEW) &&
1502 screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
1503 PIPE_TEXTURE_2D, 0, 0,
1504 PIPE_BIND_SAMPLER_VIEW)) {
1505 extensions->ARB_ES3_compatibility = GL_TRUE;
1506 }
1507
1508 #ifdef HAVE_ST_VDPAU
1509 if (screen->get_video_param &&
1510 screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
1511 PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
1512 PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
1513 extensions->NV_vdpau_interop = GL_TRUE;
1514 }
1515 #endif
1516
1517 if (screen->get_param(screen, PIPE_CAP_DOUBLES)) {
1518 extensions->ARB_gpu_shader_fp64 = GL_TRUE;
1519 extensions->ARB_vertex_attrib_64bit = GL_TRUE;
1520 }
1521
1522 if ((ST_DEBUG & DEBUG_GREMEDY) &&
1523 screen->get_param(screen, PIPE_CAP_STRING_MARKER))
1524 extensions->GREMEDY_string_marker = GL_TRUE;
1525
1526 if (screen->get_param(screen, PIPE_CAP_COMPUTE)) {
1527 int compute_supported_irs =
1528 screen->get_shader_param(screen, PIPE_SHADER_COMPUTE,
1529 PIPE_SHADER_CAP_SUPPORTED_IRS);
1530 if (compute_supported_irs & ((1 << PIPE_SHADER_IR_TGSI) |
1531 (1 << PIPE_SHADER_IR_NIR))) {
1532 enum pipe_shader_ir ir =
1533 (compute_supported_irs & PIPE_SHADER_IR_NIR) ?
1534 PIPE_SHADER_IR_NIR : PIPE_SHADER_IR_TGSI;
1535 uint64_t grid_size[3], block_size[3];
1536 uint64_t max_local_size, max_threads_per_block;
1537
1538 screen->get_compute_param(screen, ir,
1539 PIPE_COMPUTE_CAP_MAX_GRID_SIZE, grid_size);
1540 screen->get_compute_param(screen, ir,
1541 PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE, block_size);
1542 screen->get_compute_param(screen, ir,
1543 PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
1544 &max_threads_per_block);
1545 screen->get_compute_param(screen, ir,
1546 PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE,
1547 &max_local_size);
1548
1549 consts->MaxComputeWorkGroupInvocations = max_threads_per_block;
1550 consts->MaxComputeSharedMemorySize = max_local_size;
1551
1552 for (i = 0; i < 3; i++) {
1553 consts->MaxComputeWorkGroupCount[i] = grid_size[i];
1554 consts->MaxComputeWorkGroupSize[i] = block_size[i];
1555 }
1556
1557 extensions->ARB_compute_shader =
1558 extensions->ARB_shader_image_load_store &&
1559 extensions->ARB_shader_atomic_counters;
1560
1561 if (extensions->ARB_compute_shader) {
1562 uint64_t max_variable_threads_per_block = 0;
1563
1564 screen->get_compute_param(screen, ir,
1565 PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK,
1566 &max_variable_threads_per_block);
1567
1568 for (i = 0; i < 3; i++) {
1569 /* Clamp the values to avoid having a local work group size
1570 * greater than the maximum number of invocations.
1571 */
1572 consts->MaxComputeVariableGroupSize[i] =
1573 MIN2(consts->MaxComputeWorkGroupSize[i],
1574 max_variable_threads_per_block);
1575 }
1576 consts->MaxComputeVariableGroupInvocations =
1577 max_variable_threads_per_block;
1578
1579 extensions->ARB_compute_variable_group_size =
1580 max_variable_threads_per_block > 0;
1581 }
1582 }
1583 }
1584
1585 extensions->ARB_texture_float =
1586 extensions->OES_texture_half_float &&
1587 extensions->OES_texture_float;
1588
1589 if (extensions->EXT_texture_filter_anisotropic &&
1590 screen->get_paramf(screen, PIPE_CAPF_MAX_TEXTURE_ANISOTROPY) >= 16.0)
1591 extensions->ARB_texture_filter_anisotropic = GL_TRUE;
1592
1593 extensions->KHR_robustness = extensions->ARB_robust_buffer_access_behavior;
1594
1595 /* If we support ES 3.1, we support the ES3_1_compatibility ext. However
1596 * there's no clean way of telling whether we would support ES 3.1 from
1597 * here, so copy the condition from compute_version_es2 here. A lot of
1598 * these are redunant, but simpler to just have a (near-)exact copy here.
1599 */
1600 extensions->ARB_ES3_1_compatibility =
1601 extensions->ARB_ES3_compatibility &&
1602 extensions->ARB_arrays_of_arrays &&
1603 extensions->ARB_compute_shader &&
1604 extensions->ARB_draw_indirect &&
1605 extensions->ARB_explicit_uniform_location &&
1606 extensions->ARB_framebuffer_no_attachments &&
1607 extensions->ARB_shader_atomic_counters &&
1608 extensions->ARB_shader_image_load_store &&
1609 extensions->ARB_shader_image_size &&
1610 extensions->ARB_shader_storage_buffer_object &&
1611 extensions->ARB_shading_language_packing &&
1612 extensions->ARB_stencil_texturing &&
1613 extensions->ARB_texture_multisample &&
1614 extensions->ARB_gpu_shader5 &&
1615 extensions->EXT_shader_integer_mix;
1616
1617 extensions->OES_texture_cube_map_array =
1618 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1619 extensions->OES_geometry_shader &&
1620 extensions->ARB_texture_cube_map_array;
1621
1622 extensions->OES_viewport_array =
1623 (extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310) &&
1624 extensions->OES_geometry_shader &&
1625 extensions->ARB_viewport_array;
1626
1627 extensions->OES_primitive_bounding_box =
1628 extensions->ARB_ES3_1_compatibility || ESSLVersion >= 310;
1629
1630 consts->NoPrimitiveBoundingBoxOutput = true;
1631
1632 extensions->ANDROID_extension_pack_es31a =
1633 extensions->KHR_texture_compression_astc_ldr &&
1634 extensions->KHR_blend_equation_advanced &&
1635 extensions->OES_sample_variables &&
1636 extensions->ARB_shader_image_load_store &&
1637 extensions->ARB_texture_stencil8 &&
1638 extensions->ARB_texture_multisample &&
1639 extensions->OES_copy_image &&
1640 extensions->ARB_draw_buffers_blend &&
1641 extensions->OES_geometry_shader &&
1642 extensions->ARB_gpu_shader5 &&
1643 extensions->OES_primitive_bounding_box &&
1644 extensions->ARB_tessellation_shader &&
1645 extensions->ARB_texture_border_clamp &&
1646 extensions->OES_texture_buffer &&
1647 extensions->OES_texture_cube_map_array &&
1648 extensions->EXT_texture_sRGB_decode;
1649
1650 /* Same deal as for ARB_ES3_1_compatibility - this has to be computed
1651 * before overall versions are selected. Also it's actually a subset of ES
1652 * 3.2, since it doesn't require ASTC or advanced blending.
1653 */
1654 extensions->ARB_ES3_2_compatibility =
1655 extensions->ARB_ES3_1_compatibility &&
1656 extensions->KHR_robustness &&
1657 extensions->ARB_copy_image &&
1658 extensions->ARB_draw_buffers_blend &&
1659 extensions->ARB_draw_elements_base_vertex &&
1660 extensions->OES_geometry_shader &&
1661 extensions->ARB_gpu_shader5 &&
1662 extensions->ARB_sample_shading &&
1663 extensions->ARB_tessellation_shader &&
1664 extensions->ARB_texture_border_clamp &&
1665 extensions->OES_texture_buffer &&
1666 extensions->ARB_texture_cube_map_array &&
1667 extensions->ARB_texture_stencil8 &&
1668 extensions->ARB_texture_multisample;
1669
1670 if (screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES) &&
1671 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES) &&
1672 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE)) {
1673 float max_dilate;
1674 bool pre_snap_triangles, pre_snap_points_lines;
1675
1676 max_dilate = screen->get_paramf(screen, PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE);
1677
1678 pre_snap_triangles =
1679 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES);
1680 pre_snap_points_lines =
1681 screen->get_param(screen, PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES);
1682
1683 extensions->NV_conservative_raster =
1684 screen->get_param(screen, PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS) > 1;
1685
1686 if (extensions->NV_conservative_raster) {
1687 extensions->NV_conservative_raster_dilate = max_dilate >= 0.75;
1688 extensions->NV_conservative_raster_pre_snap_triangles = pre_snap_triangles;
1689 extensions->NV_conservative_raster_pre_snap =
1690 pre_snap_triangles && pre_snap_points_lines;
1691 }
1692 }
1693
1694 if (extensions->ARB_gl_spirv) {
1695 struct spirv_supported_capabilities *spirv_caps = &consts->SpirVCapabilities;
1696
1697 spirv_caps->atomic_storage = extensions->ARB_shader_atomic_counters;
1698 spirv_caps->draw_parameters = extensions->ARB_shader_draw_parameters;
1699 spirv_caps->float64 = extensions->ARB_gpu_shader_fp64;
1700 spirv_caps->geometry_streams = extensions->ARB_gpu_shader5;
1701 spirv_caps->image_write_without_format = extensions->ARB_shader_image_load_store;
1702 spirv_caps->int64 = extensions->ARB_gpu_shader_int64;
1703 spirv_caps->tessellation = extensions->ARB_tessellation_shader;
1704 spirv_caps->transform_feedback = extensions->ARB_transform_feedback3;
1705 spirv_caps->variable_pointers =
1706 screen->get_param(screen, PIPE_CAP_GL_SPIRV_VARIABLE_POINTERS);
1707 spirv_caps->integer_functions2 = extensions->INTEL_shader_integer_functions2;
1708
1709 consts->SpirVExtensions = CALLOC_STRUCT(spirv_supported_extensions);
1710 _mesa_fill_supported_spirv_extensions(consts->SpirVExtensions, spirv_caps);
1711 }
1712 }